design+client: 抽 .view-body/PageBody 统一桌面内容页宽度(600/wide 840)——stats·contact 补约束,settings·contact 560→600,九页收口

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P9G7E3wmAYL9KeYCVZVsqu

client/lib/screens/invite_page.dart

@@ -12,6 +12,7 @@ import '../pangolin_theme.dart';
 import '../services/channel_launch.dart';
 import '../services/invite_api.dart';
 import '../state/invite_provider.dart';
+import '../widgets/page_body.dart';
 import '../widgets/pangolin_button.dart';
 import '../widgets/pangolin_icons.dart';
 import '../widgets/pangolin_toast.dart';
@@ -61,13 +62,13 @@ class InviteScreen extends ConsumerWidget {
     final c = context.pangolin;
     final inviteAsync = ref.watch(inviteProvider);
 
-    Widget body = inviteAsync.when(
+    Widget body = PageBody(child: inviteAsync.when(
       loading: () => const Center(child: CircularProgressIndicator()),
       error: (_, __) => _Placeholder(t: t),
       data: (info) => info == null
           ? _Placeholder(t: t)
           : _InviteContent(t: t, info: info, onCopy: _copy, onVerifyAndClaim: (ctx) => _verifyAndClaim(ctx, ref)),
-    );
+    ));
 
     if (embedded) return body;
     return Scaffold(